For years, archaeologists have referred to an ancient set of texts known as the Maya codices to study that ancient civilization's relationship with astronomy and time. But now, a team of archaeologists has discovered a set of murals, hieroglyphs, and astronomical calendars deep in the rainforests of Guatemala, that… »5/10/12 1:45pm 5/10/12 1:45pm

No, this image is not Photoshopped. It comes from Guatemala City today, where damage from a tropical storm - including 3 giant sinkholes - has forced 120,000 people to evacuate. Here's how you can help refugees. »5/31/10 3:21pm 5/31/10 3:21pm